Improvement in sheet-delivery mechanisms for printing-machines



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No. 191,494. May 2 9, 1877.

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XX -xx Q U Witnesses Invenlcrr JM I y Wm s NJEIERS, FHOTO-LITHOGRAFHER, WASHINGTON D C.

UNITED STATES PATENT DFFICE.

STEPHEN D. TUCKER, OF NEW YORK, N. Y.

IMPROVEMENT lN SHEET-DELIVERY MECHANISMS FOR PRINTING-MACHINES.

Specification forming part of Letters Patent No. 191,494, dated May 29, 1877; application filed May 5, 1877.

To all whom it may concern Be it known that I, STEPHEN D. TUCKER, of the city, county, and State of New York, have invented a certain new and useful Improvement in Sheet-Delivery Mechanism for Printing-Machines, of which the following is a description:

In the accompanying drawings is represented, in Figure 1, a right-hand-s-ide elevation; Fig. 2, a left-hand-side elevation; Fig. 3, a rear end elevation; Fig. 4, a longitudinal section; Fig. 5, a plan view of the deliveringcylinder; Fig. 6, a similar view, showing more prominently the folding-blade it carries; Fig. 7, a view of one end of the delivering cylinder; Fig. 8, a sectional elevation of the folding-blade; Figs. 9, 10, 11, and 12, the flying and stationary camsfor actuating the folding-- blade, and the mechanisms for rotating the flying-cam; Figs. 13, 14, and 15, the foldingblade in the different positions it occupies during the folding operation; Figs. 16, 17, 18, 19, and 20, the mode of collecting many sheets and simultaneously delivering the same in a body; Figs. 21, 22, 23, 24, 25, and 26, the operation of applying a transverse line of paste to the sheet; Figs. 27, 28, and 29, means for operating the flying-cam so as to actuate the folding-blade at eachfirst or second revolution of thedelivering-cylinder; Figs. 30 and 31, means for automatically throwing the flyingcam out of and into operation; Fig. 32, an arrangement of two flying-cams operating upon two folders; Fig. 33, an arrangement of one flying-cam operating upon two folders; Figs. 34, 35, and 36, a vibrating flying-cam operating two folders; Fig. 37, the cam for actuating the gripers; Fig. 38, a means of throwing the flying-cam out of and into action; Fig. 39, a view of the mechanism for laying the transverse line of paste; Fig. 40, a rear elevation of the mechanism for laying the longitudinal line of paste; Fig. 41, a reduced scale modification of the cutting-cylinders; Figs. 42, 43, a sectional side and a rear elevation of a modification of the tranverse pasting mechanism; Fig. 44, a modification in which is embodied a cutting-cylinder, carrying two cutters or one cutter and one perforator; Fig. 45, plan and end views of the perforator removed; Fig. 46, a perforated web of paper; Figs. 47 and 48, mechanisms for imparting folds to the sheets in addition to the folding performed by the cylinder 30 and its accessories; Figs. 49, 50, 51, and 52, sheets printed from forms arranged according to system A; Figs. 53, 54, 55, 56, and 57, sheets printed from forms arranged according to system B Figs. 58 and 59, sheets printed from forms composed of sixteen pages,'the former arranged according to system A, and the latter according to system B.

This invention relates to the delivering mechanism of printing-machines, being especially adapted to that class known as webperfecting, in which a web of paper passing between two sets of type and impression cylinders is printed upon both its surfaces and, passing between a pair of cutting-cylinders, said printed web is divided into sheets of an appropriate size. Printed sheets are thus produced with such great rapidity that an apparatus operating with like speed is required to deliver them.

This invention consists in a delivering mechanism in which is embodied a delivering-cylinder that receives the sheets from the printing-machine, and of accessories to said cylinder, which consist of a set of gripers to seize the front edges of the sheets, tapes to aid in carrying the sheets around with the cylinder, a switch to discharge the sheets from the cylinder, a folding-blade to enter the sheets into a folding device, and pasting devices for pasting or gumming the sheets, so that when folded they will'adhere at certain margins.

These accessories will cause the deliveringcylinders to serve, first, asa collectingcylinder that will gather or accumulate two or more sheets successively one upon the other on its surface, and then discharge them in a single body or mass therefrom to a piling apparatus, which will pile them open or flat; second, as a foldingcylinder to fold sheets by a foldingblade entering them into a folding device; third, as a combined collecting and folding cylinder, which will first collect two or more sheets and then enter them together into a folding device; fourth, as a combined collecting, pasting, and folding cylinder, which will collect two or more sheets, present them to a pasting device to receive paste or gum at the desired margin, and then enter them into a folding device, so that when folded they will adhere together.

Many other features are involved in thisinvention, but need no preliminary mention, since they are set out at length in a clear and precise manner in the following description:

This invention is capable of use in connec tion with any form of printirig-machine, or with any sheet furnishing or feeding mechanism; but it is especially adapted to be connected with a web-perfecting printing-machine in which the web is severed into sheets either before or after being printed. Such a machine contains two type and two impression cylinders and a cutting mechanism; but, as its structure is well known and forms no part of this invention. the last type and impression cylinders only are herein illustrated.

The paper is illustrated as being received from a reel, 96, and. bassing between the said last type-cylinder 100 and impression-cylindcr 99, being directed thence between a pair of cutting-cyliinlers, 97 98, the former of which is furnished with a cutting-blade, 95, which engages in a slot, 94, out in the periphery of the cylinder 98. In passing through these cutting-cylinders the web is severed or partially severed, as the case may be, upon the lines which are to divide it intosheets. Said. cuttingcylinders are geared together by toothed wheels 90 91, the latter gearing with a toothed wheel, 92, on the impression-cylinder 99, and this last wheel gearing with a toothed wheel, 93, on the type cylinder 100. The cutting'cylinders are ot a circumference equal tothe length of the desired sheet, or may be equal to the length oftwo sheets, as will hereafter appear, while the type-cylinder has an area equal circuinfcrentially to the length of two sheets, and longitudinallyto the length of one or two sheets, as play be desired, the purpose of which relative sizes of the cutting and type cylinders will be more fully hereinafter set out.

The delivering'cylinder 30 is mounted in suitable journals in the frame-work, and carries a driving toothed wheel. 86, at one end, which connects through a train ol'such wheels, 87 88 89, with the toothed wheel 91 on the lower cutting-cylinder. Motion may be imparted to the shaft of the delivering-cylinder 30, as is shown in the drawings, or to the shaft of either the cutting. type, or impression cylinders.

Endless carrying-tapes are stretched to conduct the sheets severed by the cutting-cylinders to thedelivering-eylinder 30. The upper series 61 of these tapes are stretched from the roller 31 over the upper surface of the delivering-cylinder 30, around a roller, 33, and returned through guides 63 over a supportingroller, 32, to the roller 31. The lower series 62 of these tapes pass from the roller 34 over roller 35 in contact with the upper surface of the receiving-cylinder 60, thence under a roller, 36, and return to the roller 34. These tapes receive motion from the delivering-cylinder 30 and receiving-cylinder 60, which are geared together by toothed wheels 5 6, and as the delivering cylinder 30 is somewhat larger than the cutting-cylinders, the surface speed of these tapes is rendered greater than that of the cutting-cylinders, the result of which is that a sheet partially severed by the cutting-cylinder will, when nipped between the upper tapes and the surface of the delivering-cylinder, have its speed of travel accelerated to such a degree that it will be torn on the partially-severed line from the end of the web, thus producing a space, 41, between the rear end of said sheet and the forward end of the web, which provides room for the entrance of the gripers and switches between said sheets, as will be readily understood. When, however, the cutting-cylinders entirely sever the web into sheets, each sheet, as it is nipped upon the delivering-cylinder, is advanced rapidly to produce the space 41 between each successive sheet. In this latter case, conductors extending into grooves in each should bridge the space between the. cutting-cylinders and rollers 31 34.

A third set, 64, of endless tapes are stretched around the receiving-cylinder 60 and a roller, 65, which latter is supported upon a shaft, 66, hung in arms 67 fast upon a shaft, 68. This shaft 68 is connected, by an arm, 69, with a rod, 70, by which the roller 65 and the tapes 64 may be held up against the delivering-cylinder 30, as in Figs. 4, 16,17, 18, and 21, or be rocked down from that position, as is shown in Figs. 15 and 22, as may be desired, the purpose of which will hereinafter appear. This rod 70, Figs. 1 and 21, is bifurcated at one end to straddle the type-cylinder shaft 71, upon which is a cam, 72, which bears upon a friction-roller, 73, carried by the rod 70, and thus rocks said roller 65, and the tapes 64 it carries into the positions before described.

There is a series of switches, 7, hung upon a shaft, 42, between the delivering-cylinder 30 and the receiving-cylinder 60, which shaft 42 is rocked by means of an arm, 43, and connecting-rod 44, the latter being bifurcated at its lower end to straddle the shaft 200 of the cam-wheel 46, Figs. 2 and 19, and provided with a pin, 45, entering the cam-groove 47 cut in the face of the wheel 46. This cam-wheel 46 is rotated bya pinion, 48, fast on the shaft of the delivering cylinder 30, which gears with its toothed periphery.

A set of fixed guides, 108, are set above the switches to guide the sheets from the roller 35 and from the switches 7 to the roller 32.

The delivering-cylinder 30 is supplied with gripers 10 working through a recess in the same, which are fast upon a shaft hung in the ends of said cylinder. This shaft carries an arm, 21, one end of which is supplied with a friction-roller, 22, which runs upon a cam, 23, fixed to the frame-work, the other end being supported by a rod, 24, hung in an eye, 25, on the cylinder-head, and seated upon a spring,

26, said gripers being thus operated, as is common in printing-machines.

A fly-t'rame, 27, supported upon a shaft, 28, seated in suitable brackets in the frame-work, is automatically vibrated at proper intervals by means of a rock-arm, 49, connecting the shaft 28 with a spring-seated rod, 50, the movements of the shaft 28 being governed by a rock-arm, 29, and a rod, 19, which is bifurcated to straddle the shaft 200, and provided with a stud or pin, 2, bearing upon the face of a governing-cam, 51. fast on said shaft 200.

Thus equipped the delivering-cylinder 30 is capable of receiving sheet after sheet, which accumulate one on the other upon its surface to any predetermined number, which are delivered in a body therefrom and deposited by the fly-frame upon the piling-table. This function of the said cylinder is in itself wellknown ;Y but, in order that the operation of the delivering-cylinder 30 may be readily understood, it will now be briefly described.

The roller 65 is moved forward by means of the rod 70, so as to stretch the tapes 64 against the periphery of the cylinder 30, as in Figs. 16, 17, 18, and 21, being locked in that position by means of a key, which extends through an opening, 38, in the rod 70, and into a recess in the side-frame of the machine, or in any other convenient manner.

The leading end'of the sheet carried forward by the tapes 61 62 is presented beyond the roller 32 in such a position over the delivering-cylinder that the gripers 10, which are opened, Fig. 37, by their -arm 21 riding over the higher part of the cam 23, and closed as said arm descends upon the lower part of the cam, in which latter movement they bear down upon and seize the forward end of the sheet, as in Fig. 4, thus securing it upon the said cylinder, and causing it to be laid thereon as the rotative movement of the cylinder proceeds. L

Each sheet is thus seized and held upon the cylinder by the gripers from the point occupied by the roller 32 to that occupied by the roller 65, and just after the head of a sheet has entered between the tapes 64 and the periphery of the delivering-cylinder 30, the gripers begin to open, Fig. 17, in order to be in position to seize the next sheet received upon said cylinder, as in Fig. 21. The sheet thus released is propelled onward by the pressure of the roller 65, and guided by the tapes 64. At the point where the tapes 64 leave the delivering-cylinder 30 and pass onto the receiving-cylinder 60 the switches 7 are so placed that, when in the position shown in Fig. 21, they will act as guides, directing and holding the sheets upon the deliveringcylinder 30, the guides 108 performing a like service.

The delivering-cylinder in its rotation carries the leading end or head of the sheet thus held upon it under the tapes 61, at the roller 32, reaching which another sheet received from the printing-machine will be laid upon the first, seized by the gripers, and treated in like manner as was the first, upon which it is laid. Any convenient number of sheets may thus be superposed upon the delivering-cylinder 30, and when the predetermined number (four in the machine illustrated) has been collected, the switches 7 are automatically shunted, so that their points are entered behind the sheets, and into recesses 4 cut in the surface of the cylinder 30, as in Fig. 16, whereby the curved back faces of the said switches are brought so as to coincide with the periphery of the receiving-cylinder 60. As the gripers 10 release the body of accumulated sheets the heads or leading edges of the same will be guided by the said switches 7 up over the receiving-cylinder 60,- and between it and the tapes 62, by which the body of sheets will be conducted down before the fly-frame 27, which fly-i'rame will be automatically vibrated to deliver said four sheets in a single body upon the piling-table. While this body of sheets is thus passing off the cylinder to be delivered. a single sheet from the printing-machine will be received and seized by the fingers 10 upon the delivering-cylinder 30, as in Fig. 16, and when the tails of the body of sheets being delivered from the said cylinder 30 pass the point occupied by the end of the switches 7 said switches will be automatically rocked into the position shown in Fig. 17, so that the single sheets shall he conducted around the cylinder. The points of the switches 7, when in the position of Fig. 17, enter grooves 4, 134, and 135 in the periphery of the receivingcylinder 60, and the gripers 10, which. when opened, project beyond the periphery of the cylinder 30, ride through these said grooves.

As is apparent, the fly-frame and switches must be operated so as to vibrate once to every four revolutions of the delivering-cylinder 30. It is also apparent that such gearing may be supplied in operating these several parts as to cause the delivering-cylinder to gather or accumulate any particular number of sheets. Six, however, are found to be a desirable numher, since that quantity may be accumulated upon the delivering-cylinder 30 in the time occupied by the ordinary vibrations of a flyframe.

It has been said that the gathering-cylinder is not, per se, a novelty; but said cylinder, when combined and operating as is hereinafter set forth, and when supplied with certain mechanism now to be particularly referred to, constitutes a novelty.

In all former arrangements of mechanisms for retaininga number of sheets upon a gathering-cylinder the entire circumferential area of said cylinder has been provided with guards for retaining the sheets thereon-that is to say, such guards are supplied from the point of reception to the point of delivery-as will hold or support the sheets upon the cylinder.

The gathering-cylinder herein illustrated is provided with gripers 10, which may seize the sheet at the point of receptionviz., just beyond the roller 32-and hold the same fixedly upon the cylinder until the point of delivery is reachedviz., at the switches 7.

It is therefore apparent that the guards formed by the tapes 61, between the rollers 32 and 33, and by tapes 64, between the roller 65 and the switches 7, may be omitted, and that the gripers will seize the sheets and carry them around with the cylinder until the switches 7 are reached, when the gripers will release and deliver said sheets to the switches, which, in the position shown in Fig. 16, will, by their front faces, guide and deliver them before the fly-frame as they are driven onward by the action of the roller 65.

Thus the gatheringcylimler provided with gripers requires no guard for retaining the sheets upon it from the point of reception, roller 32, to the point of delivery, switches 7; but as there is necessarily a considerable space between the switches 7 and the roller 32 over which the sheets will not be surely directed without the. aid of a guide, such a device is provided in the fixed guides 108, one face of which coincides with the curved surface of the cylinder, and the other provides a support for the incoming sheet from the roller 35 to a point near the periphery of the cylinder 30.

The tapes between the rollers 32 33 are, however, advantageous, since they prevent the tail end of the sheet from flying 06' from the cylinder, as does also the guard-plate 105. The tapes 64 are also of great advantage, as they hold the sheet up against the cylinder after it is released by the gripers, and thus propel its forward end. Hence, when these tapes are omitted the roller 65 should be retained to propel each sheet onward.

The delivering-cylinder 30 is also supplied at one point of its periphery with a shaft, 39, hung in suitable supports in the cylinders, which shaft carries folding-blades 40 52, held upon it by suitable arms 8 9. This shaft protrudes through one of the heads of said cylinder, and is supplied with projecting arms 11 12, (see Figs. 5 and 6,) which carry, respectively,friction-rollers l3 14,through which arms semi-rotations are imparted to said folding-blade shaft by means of a dying cam and stationary cam, as will now be explained The stationary cam 16 is secured to the frame-work, as in Fig. 11, and the flying-cam is fixedly hung upon the end of the shaft 17, which isjournaled in the side frame, as in Figs. 11 and 12. This shaft 17 has fastened upon it a toothed wheel, 18, which gears with a similar wheel,53,fast n pon the shaft 20ofthedeliveringcylinder. These toothed wheels 53 and 18 have an equal number of teeth, Figs. 11 and 27, whereby the flying-cam 15 is caused to make one revolution in concert with a like movement of the delivering-cylinder, the result of which is that the said tlyingeam is brought into the position shown in Fig. 13 at the time when the friction-roller 14 on the arm of the folder-blade shaft is in the position therein shown, and as the cylinder moves in the direction of its arrow the flying-cam will be moved in the direction shown by its arrow, so that as these rotations proceed their constantly-changing positions will be such as to cause the curved face of the flying-cam to be brought upward, and form between it and the upper curved surface of the stationary cam 16 a guideway, which will direct said friction-roller 14 into the central portion or greatest depressed part of the stationary cam, as in Fig. 15, at which time the point of the flying-cam will be directly over the friction-roller 14, while the friction-roller 13 on the arm 11 of the folding-blade shaft will overlie the base of the flying-cam. As the rotations proceed the point of the said flyingcam 15 will be carried past the friction-roller 14, and its opposite side will form a guideway directing the roller 14 out from the stationary cam 16. By this operation of these devices the folding-blade shaft will be gradually revolved so as to project the folding-blade from the cylinder and cause it to enter between folding jaws formed in the instance illustrated by rollers 33 54; and when said blade has reached its greatest protrusion from the cylinder 30, it will stand between the folding jaws in the position shown in Fig. 15, from which position it will be gradually withdrawn into the cylinder, the path of travel which it describes in this movement being substantially an hypercycloidal curve. The folding-blade shaft will thus have made a semi-revolution, carrying its forward blade from the position shown in Fig. 13 through that illustrated in Fig. 15 into that shown in Fig. 14, where it is held by the spring-detent 107, whose rounded end enters a shallow recess in said shafts. It will be observed that the blade 52 now lies in the rearmost position, while that is in the advanced position, and the latter will, of course, be the blade which is next affected by the movements of the cylinder and flying-cam. This mode of automatically projecting a folding-blade outward from a revolving carrier and between folding jaws and withdrawing the same into the said carrier, to be carried thereby and at the proper time again brought to and projected into the foldingjaws, forms in itself no part of the present invention, being fully described in Letters Patent 171,196, granted to me December 14, 1875.

When it is desired to convert this delivery mechanism into a folding apparatus, which shall receive the sheets successively upon the surface of the cylinder and fold them trans versely, the cam 72 is removed and the connecting-rod is released so that its spring 74 will draw it back to rock the roller 65, and with it the tapes 64, into the position shown in Figs. 15 and 22. where they are of no effect, since the forward end of the sheet which is being folded is not required to be guided by them when it is released by the gripers. The switches may be thrown out of operation or be allowed to act, since the sheet being folded does not reach the point occupied by them.

Thus equipped, each sheet directed by the tapes 61 62 onto the cylinder 30 is seized by the gripers 10, held upon the cylinder, and

carried around with it until released, the middle of the sheet overlying the'foldingblade.

The gripers will commence their opening movement to release and render free the head of the sheet just as or a little before the foldin gblade begins its outward movement to carry the middle of the sheet between the folding jaws formed by the rollers 33 54. The outward movement of the folding-blade draws the leading end of the sheet backward and doubles its middle into said folding-rollers 33 54, which, in consequence of their rotation, carry it out between them in a folded condition.

The said rollers 33 54 are geared together by toothed wheels 75 76, the wheel 75 meshing with the toothed wheel 5 on the cylinder 30, and the two thus rotated with a surface speed uniform with that of the surface movement of the cylinder 30.

The mechanism thus arranged is capable of imparting one fold to each sheet and delivering it from the folding-rollers 33 54. It may then receive further manipulation, as will be explained.

In order to adapt this mechanism to collect two or more sheets and simultaneously fold and deliver the same, the object being to collect separate sheets, which together form the complete newspaper, the following arrangement is made:

Supposing two to be the number of sheets desired to be thus treated, a flying-cam and proper gearing, such as is illustrated in Figs. 9, 10, and 28, is substituted for that last described and illustrated in Figs. 11, 12, and 27, and, like it, is carried upon a shaft, 17, supported in journals in the frame-work, and provided with a toothed wheel, 18, which gears with a toothed wheel, 53, on the shaft of the delivering-cylinder. The toothed wheel 53, in this instance, has three teeth to each two provided upon the toothed wheel 18, whereby the said flying-cam is caused to make one and one-half turns to every one of the delivering-cylinder. If, however, more than two sheets are to be first collected and afterward simultaneously folded, these toothed wheels must be so proportioned as to cause the flying-cam to meet and operate the folding-blade at each third, fourth, or other revolution of the delivering-cylinder, as will be described. In this operation of collecting two sheets in succession it is apparent that the first must be directed around the cylinder so as to receive the second upon it, but that when the two are superposed and their leading ends are released from the gripers so that they may becarried through the folding-rollers, said leading ends must be kept free from engagement with the means which direct the first sheet onward with the cylinder when the gripers release it. To this end the rod 70, which is attached to the shaft carrying the roller 65 which supports the tape 64, is brought into operation by adjusting the cam 72 upon the shaft 71, which cam is so shaped as to reciprocate the rod 70 at every second revolution of the deliveringcylinder.

The switches 7 are made inoperativethat is, they are kept in the position to continuously guide the sheets around with the cylinder -for the reason that none of the sheets are to be directed to the fly-frame. This is done, in the present instance, by detaching the rod 44 by unloosening the screw 55. It might be accomplished by making the pin 45 screw'threaded, so as to be readily turned in and out of engagement with the cam-groove 47. The pasting mechanisms (yet to be described) are also made inactive, being thrown out of action .by detaching their drivingwheels.

Thus equipped, one sheet will be delivered to the gripers and carried by them around with the cylinder 30. When the point is reached where the gripers release the sheet, the cam 72 will have rocked the tapes 64, or, if they are omitted, the propelling-roller 65, into the position shown in Fig. 21, which tapes or roller will then guide the sheet onward with the cylinder 30, as hereinbefore explained, and a second sheet will be received upon it, seized by the gripers, and carried onward with the cylinder 30. During this second revolution of the cylinder the cam 72 will have caused the tapes 64 and roller 65 to be rocked into the position shown in Fig. 22, so that when the two sheets are simultane ously released by the gripers their leading ends will be free, as in Fig. 22. As the cylinder revolves carrying the first sheet up on it, the point of the flying-cam will be pointed in toward the center of the cylinder 30, when the folding-blade arms pass it, (see Fig. 10,) thus leaving afree path for the said arms of the folding-blade, and as the said cylinder makes its next revolution with the second sheet upon it, the flying-cam will again have made one and one-half revolutions, bringing its point into position to operate the folding-blade, as in Figs. 14, 15, 28, and thus double the two sheets simultaneously into the nip of the folding'rollers 33 54, as shown in Fig. 22. The operation of the flying-cam and stationary cam in effecting the folding and withdrawing movements of the folding-blade, being the same as has been described with reference to the folding of each successive sheet, is not described here.

To throw the folding blade or blades out of action in a folding-cylinder, when, for instance, it is to be used as a collecting-cylinder to fly the sheets, the flying-cam may be rendered of non-effect by many constructions. Thus, it may be removed with its shaft, as in Figs. 9, 10, 11, and 12, where the cap covering its journalbox is made detachable by screws 77. Either of the driving toothed wheels 18 53 might be removed by means of their holding-screws 78, or the flying-cam 15 might be fixed upon the face of its toothed wheel 18, and the two be adapted to slide freely on the shalt 17. passing out of and into gear with the driving toothed wheel 53, according as the cam is in or out of working position, as in Fig. 38. The tly ing-cani might be held constantly forward in its working position and the driving toothed wheel 53 slide upon a splined shaft into and out of gear with the toothed wheel 18 ot the flying-cam, as in Fig. 38.

To readily determine the relative positions of the teeth of these wheels 18 53, their peripheries may he marked with indexes, showing proper points for their respective teeth to gear, or they may each carry a guard wire or plate, 131, cut away at a certain place, which will allow them to be moved out and in gear at that place and no other. A stop pin, 130, inserted through the framework into a hole in the cam-wheel will prevent its turning when out of action.

'lhisappa-ratus is provided with longitudinal and transverse pasting mechanisms. The longitudinal pasting mechanism, Figs. 1, 40, consists of a disk, 133, revolving in a paste-reservoir, 126, placed just beneath the longitudinal center margin of the sheets in their passage to the deliveringeylinder30. This disk 133 is fast upon a shaft, 130, extended through the side frame, and provided with a pulley, 117, which is rotated, by means of a belt, 118, from a pulley, 116, on the impression-cylimler shaft. The web or sheets of paper run through a guide having'an opening in its lower plate, formed as illustrated, oi fingers 124 125, placed on each side of the paste-dish. The upper member, 124, of this guide is fast upon a rock-shaft, 122, and the lower member 125 is fast upon a rock-shaft, 123. These shafts 122 123 are con nected together by a link, 121, so as to move in unison and carry the paper up away from, or down upon, the paste-disk, as may be desired.

This movement is accomplished by a rockarm, 137, fast upon the shaft 123, operated by a cam, 119, on the lower cutting-cylinder 98, through a connecting-rial, 120, furnished with a friction-roller, by which de ices the paper is raised or lowered at such intervals of time as may be required to properly paste it longitudinally.

In order to adapt this machine to collect two sheets, paste the same transversely on the proper margin, and fold and deliver them adhering together, the apparatuses are arranged to collect and fold two sheets, as last described, and the transverse pasting mechanism is brought into action.

The transverse pasting mechanism consists ofa paste-fountain, 57, furnished with a roller, 58, revolving to bring up the paste, which roller may be furnished with a scraper or doc' tor, to remove the excess of paste, as is commonly done in the ordinary ink'fonntain.

The pasting-blade is a simple strip of metal fixed on a shaft, 140, which turns in arms 138, carried by a rotating shaft, 79, placed parallel with the cylinder 30. The blade turns independently of the rotative movement of its carrying-arms 138, for the purpose of retarding its movement at the pasting-roller, and accelerating it at the point of its engagement with the delivering-cylinder, as will be described. The shaft 79 carries at one end a toothed wheel, 80, meshing with a similar wheel, 81, on a cross-shaft, 82, (see Fig. 1,) which receives motion through a toothed wheel, 83, Fig. 2, from the toothed cam-wheel 46. This latter wheel is driven from the cylinder 30, and the gearing just described is so timed that the pasting-blade is revolved turn for turn with said cylinder, and as the cylinder revolves this blade comes alternately into contact with the fountain-roller 58, from which it receives a charge of paste, and with the sheet of paper, (carried by the cylinder) to which it imparts it.

The fountain-roller 58 is intermittingly rotated, to present to the action of the pastingblade a surface charged with paste, by a ratchet-wheel, 84, actuated by a pawl, 3, carried by an arm, 85, rocked by an arm, 101, pivoted eccentrically to the face of the wheel 80.

As the pastingblade 59, if allowed to simply rotate, and thus sweep over the surface of the slowly-moving fountain-roller 58, would gather a large quantity of paste upon its advanced side, and thus smear the paper, the said blade isso operated that as it approaches the fountain-roller, which is then stationary, its edge shall be carried directly against the periphery of the said roller; then said blade shall be turned so as to leave the said roller without dragging over any portion of its surface, and when the blade is thus free from the roller, and moves onward in its circular path, it is brought intoa position so that its edge shall travel with the same speed as does the surface of the cylinder 30, or the paper carried by it.

In order to accomplish these movements of the pasting-blade its shaft 140, which is made to turn in the arms 138 which carry it, is provided at one end with a rock-arm, 102, which rides upon the periphery of a cam, 103, fixed upon the side frame, and at the other end is provided with a spring, 104, which constantly presses the rock-arm against the cam 103.

As the diameter of the circle described by the paste-blade when in its greatest extended position is less than that of the cylinder 30, and as this blade must move with the same surface-speed as does the cylinder when in co-operation with it to apply paste to the sheet it carries, it follows that the speed of said blade must be accelerated at that time; and as the fountain paste-roller is stationary, or nearly so, at the time when the blade is carried into contact with it to be charged with paste, its motion must be such that the blade will not sweep over the surface of the roller, but be carried quickly into contact with, and withdrawn from, the same. This is 

